Mobile power supply market voltage of 5V, and most mobile phone battery marked charging limit voltage of 4.2V, rated voltage of 3.7V, with mobile power to charge the mobile phone, there is no problem ah?
If your phone has wire, plug it into the computer's U port to recharge itThen the use of 5V mobile power is no problem, the computer's U port is also 5 volt output5V charging voltage into the mobile phone will be automatically changed by the circuit inside the phone, a part will be converted to the appropriate charging voltageCharge the battery safely
Not much of a problem, as long as not to buy the inferior power, is generally not a problem, the output of a power supply voltage is 5V, which is in the idle state, in fact, now mostly use lithium batteries, the battery needs charging with constant current, that is to say the current requirement for high,After the electricity is filled, the voltage feedback circuit read by the control circuit from the battery end is compared with the control circuit, and the comparison result reaches the preset value, so that the protection circuit is started and the charging is stopped from the 4.2V. 4.2V is the function.
No problem. Almost all mobile phone charger output is 5V, computer USB output standard is 5V.Indicate the limit 4.2V, which indicates that the overcharge voltage of the lithium battery is 4.2V, and the charge to the battery 4.2V will stop and can not be charged any more. To achieve this requirement, the lithium battery comes with a protective plate that protects the voltage by 4.2V. When the charge voltage reaches this protection value, the guard plate cuts off the input current.
There is also a charging management circuit on the mobile phone circuit board, and the charging voltage is also monitored. When the battery reaches 4.2V, the input will be cut off.Lithium batteries can not be charged or discharged, so all kinds of protective measures are needed to ensure their normal operation, so do the mobile power supply. Therefore, when buying mobile power, do not be too cheap, quality assured, security will be guaranteed.
Nothing much... All the batteries in the battery have been tested with overcharge and discharge... Besides, the electric core and the chip board are safe and applicable... The electric current can not be too large
